get_media_embedded_in_content( string $content, string[] $types = null ): string[]
- Since
- 3.6.0
- Source
wp-includes/media.php:5166
Compatibility
- WordPress
- since 3.6.0
- PHP
- 7.4–8.6-dev
- 6.7.7
- 6.8.8
- 6.9.7
- 7.0.4
- 7.1.0
Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.
Parameters
$contentstring- A string of HTML which might contain media elements.
$typesstring[]optional- An array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'.Default:
null
Return value
string[]- Array of found HTML media elements.
Performance profile
How much work a call to get_media_embedded_in_content() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Light
- Scaling
- Scales with input
- Instructions
- 20–33
- Plugin surface
- 1 hook
- Called by
- 0
Touches nothing outside its own arguments.
The body loops, so the work grows with what you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 36.
Third-party callbacks on 'media_embedded_in_content_allowed_types' run inside this call, and their cost is not bounded by anything here.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- hookthird-party callbacks
apply_filters()called directly - regexregular expression over the whole input
preg_match_all()called directly
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost get_media_embedded_in_content() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
empty($types) | 20–24 | apply_filters(), preg_match_all() |
!empty($types) | 27–33 | apply_filters(), array_intersect(), preg_match_all() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 36 | 20–33 | 5 | |
| 8.5 | 36 | 20–33 | 5 | |
| 8.4 | 36 | 20–33 | 5 | 4 fewer instructions than PHP 8.3 |
| 8.3 | 40 | 24–37 | 5 | |
| 8.2 | 40 | 24–37 | 5 | |
| 8.1 | 40 | 24–37 | 5 | |
| 7.4 | 40 | 24–37 | 5 |
An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.
Hooks and filters fired · 1
One hook fires while get_media_embedded_in_content() runs, in this order:
- apply_filters( media_embedded_in_content_allowed_types )filterline 5177 (+11 into the body)
Filters the embedded media types that are allowed to be returned from the content blob.
Uses · 1
- apply_filters()Calls the callback functions that have been added to a filter hook.
Source code
function get_media_embedded_in_content( $content, $types = null ) { $html = array(); /** * Filters the embedded media types that are allowed to be returned from the content blob. * * @since 4.2.0 * * @param string[] $allowed_media_types An array of allowed media types. Default media types are * 'audio', 'video', 'object', 'embed', and 'iframe'. */ $allowed_media_types = apply_filters( 'media_embedded_in_content_allowed_types', array( 'audio', 'video', 'object', 'embed', 'iframe' ) ); if ( ! empty( $types ) ) { if ( ! is_array( $types ) ) { $types = array( $types ); } $allowed_media_types = array_intersect( $allowed_media_types, $types ); } $tags = implode( '|', $allowed_media_types ); if ( preg_match_all( '#<(?P<tag>' . $tags . ')[^<]*?(?:>[\s\S]*?<\/(?P=tag)>|\s*\/>)#', $content, $matches ) ) { foreach ( $matches[0] as $match ) { $html[] = $match; } } return $html;}Changelog
Introduced in 3.6.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
About this page
- Parsed data
- Generated from the wordpress-develop 6.7.7 tag, from
src/wp-includes/media.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
- Something wrong on this page? Report it and it gets fixed in the next regeneration.